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v1.0.0
ICD-10 Guide
ICD-10 CodesS21.449

S21.449

Billable

Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/23/2025

Code Description

ICD-10 S21.449 is a billable code used to indicate a diagnosis of puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

A puncture wound with a foreign body of the back wall of the thorax that penetrates into the thoracic cavity is a serious injury that can lead to various complications. This type of wound typically occurs due to trauma from sharp objects, such as knives, glass, or metal fragments, and can result in significant damage to the underlying structures, including the lungs, blood vessels, and heart. The penetration into the thoracic cavity can lead to conditions such as pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), or even cardiac injuries, depending on the location and depth of the wound. Patients may present with symptoms such as chest pain, difficulty breathing, and signs of shock. Immediate medical intervention is crucial to assess the extent of the injury, manage any bleeding, and prevent further complications. Surgical intervention may be required to remove the foreign body and repair any damage to the thoracic structures. Proper coding of this condition is essential for accurate billing and to ensure appropriate care is documented.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Need for precise documentation of the location and extent of the wound
  • Differentiation between types of foreign bodies and associated injuries
  • Potential for multiple complications requiring additional codes
  • Variability in clinical presentation and treatment approaches

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the type of foreign body
  • Lack of detail regarding associated injuries (e.g., pneumothorax, hemothorax)
  • Improper linkage between diagnosis and surgical procedures

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and notes on the mechanism of injury.

Common Clinical Scenarios

Management of stab wounds, gunshot wounds, and other penetrating injuries to the thorax.

Billing Considerations

Ensure accurate coding of any surgical interventions performed, including thoracotomy or chest tube placement.

Emergency Medicine

Documentation Requirements

Comprehensive assessment notes, including vital signs, imaging results, and treatment provided.

Common Clinical Scenarios

Initial evaluation and stabilization of patients with thoracic trauma.

Billing Considerations

Document all findings and interventions clearly to support coding for potential complications.

Coding Guidelines

Inclusion Criteria

Use S21.449 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when there is a documented puncture wound with a foreign body that penetrates the thoracic cavity
  • Ensure that all relevant clinical details are captured in the medical record to support the use of this code

Exclusion Criteria

Do NOT use S21.449 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

Used to remove fluid or air from the pleural space in cases of hemothorax or pneumothorax.

Documentation Requirements

Document the indication for the procedure, the amount of fluid removed, and any complications.

Specialty Considerations

Ensure that the procedure is linked to the appropriate diagnosis code.

32100CPT Code

Thoracotomy

Clinical Scenario

Performed to access the thoracic cavity for repair of injuries or removal of foreign bodies.

Documentation Requirements

Detailed operative report including findings and interventions.

Specialty Considerations

Accurate coding of the procedure is essential for reimbursement.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of injuries, including puncture wounds with foreign bodies. This specificity aids in better tracking of trauma cases and improves the accuracy of healthcare data.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including puncture wounds with foreign bodies. This specificity aids in better tracking of trauma cases and improves the accuracy of healthcare data.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including puncture wounds with foreign bodies. This specificity aids in better tracking of trauma cases and improves the accuracy of healthcare data.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the importance of specifying the type of foreign body?

Specifying the type of foreign body is crucial for accurate coding and understanding the potential complications associated with the injury. It also impacts treatment decisions and surgical interventions.